* Impromptu is a Scheme programming environment, not Common Lisp.
Binary versions of Impromptu are free but source code is not availible.
CLiki is a Common Lisp wiki. It contains links to and resources for free software implemented in Common Lisp. Impromptu is neither a Common Lisp program nor free software, should this page be deleted?
CLiki pages can be edited by anyone at any time. Imagine a fearsomely comprehensive disclaimer of liability. Now fear, comprehensively